PRN     Azimuth(d)     Elevation(d)   Vertical-TEC(tecu)    Slant-TEC(tecu)       S4(L1/L2)    2019/05/08-23:57:40
G02     9.0            71.4                8.5 +/-    0.90       9.0 +/-    0.90  0.060 / 0.080
G05     158.6          42.9               12.6 +/-    0.82      17.5 +/-    0.82  0.080 / 0.100
G06     43.3           34.4                8.5 +/-    1.69      13.7 +/-    1.69  0.130 / 0.280
G12     293.7          76.1                9.1 +/-    0.88       9.4 +/-    0.88  0.100 / 0.210
G19     82.7           21.4                9.5 +/-    1.90      20.2 +/-    1.90  0.030 / 0.020
G24     221.3          16.4               13.8 +/-    3.26      33.2 +/-    3.26  0.020 / 0.020
G25     314.6          37.1                9.5 +/-    0.91      14.5 +/-    0.91  0.070 / 0.070
G29     293.6          16.9               10.3 +/-    2.39      24.4 +/-    2.39  0.060 / 0.060